Improvement in steam-boilers



UNITED STATES PATENT OFFICEc HOLMES HINKLEY, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN STEAM- BOILERS.

Specification forming part of Letters Patent N0. 51,046, dated November21, 1865.

To all whom t may concern:

Be it known that I, HoLMEs HINKLEY, of Boston, in the county of Suffolkand State of Massachusetts, have made a new and useful ImprovementinBoilers for Locomotive Steam- Engines for Railways; and I do herebydeclare the same to be fully described in the following specification,and vrepresented in the accompanying drawing, which is a vertical andlongitudinal section of a locomotive engine provided with my invention.

The nature of the said invention consists in a peculiar arrangement ofsmoke-fines and chambers with the smoke-box, the furnace, andwater-space of the boiler.

In the drawings, A is the locomotive-engine, and B the tender.

I combine Withthe furnace b the waterspace 0, the smoke-box g, and thedischargepipe h, leading to the chimney i, two other smoke-chambers orboxes, cf, which I arrange within such water-space, or with respect toit and the furnace, substantially in the manner as represented in thedrawing.

Iconnect the furnace and the smoke-boxes by means of three series oftubes, 7c l m. The rst of these series opens out of the furnace andleads into the smoke-box f, which is around or next to the chimney-pipeh. The second or neXtseries, Z, of pipes leads from the smoke-box f intothe upper part of the other auxiliary smoke-box, c. The third and lastof the series of pipes-viz, that marked m-leads from the smoke-box einto the main smoke-box g. Each series of pipes or tubes for theconveyance of the smoke and volatile products of combustion through thewater-space ofthe boiler and into and from the auxiliary smoke-boxes, Icompose of such a number of tubes as may be most convenient.

In the operation of the boiler so made the smoke will pass from thefurnace through the upper series, k, of tubes and enter the rstauxiliary smokebox,f, from whence it will ow through the second series,l, of tubes and be discharged into the second auxiliary smoke-box, c,wherein will be deposited the sparks which will accumulate therein in areceiver, N, arranged at the bottom or lower part of such smokebox. Itis intended that the said receiver shall be so made as to enable thesparks to be removed from it, as occasion may require. From the box ethe smoke will course through the third series, m, of tubes and enterthe main smoke-box g, from whence it will be discharged by the ue h intothe chimney Owing to the peculiar position and arrangement of thesmoke-box @the sparks and dustwill be arrested by such boX.

My construction ot' boiler causes it to be larger in diameter and muchshorter than one of like power constructed with a single stack only ofsmoke-fines leading from the furnace to the smoke-box from which thechimney proceeds.

I claim- The arrangement of the three series k l m of smoke-tubes, andthe ltwo auxiliary smoke boxes or chambers cf, with the main smokebox g,the furnace b, and water-space o of the boiler.

HOLMES HINKLEY.

Witnesses R. H. EDDY, G. H. WAsHBURN.

